Smithsonian Digital Repository: Recent submissions

  • TOI-1075 b: A Dense, Massive, Ultra-short-period Hot Super-Earth Straddling the Radius Gap 
    Essack, Zahra; Shporer, Avi; Burt, Jennifer A.; Seager, Sara; Cambioni, Saverio; Lin, Zifan; Collins, Karen A.; Mamajek, Eric E.; Stassun, Keivan G.; Ricker, George R.; Vanderspek, Roland; Latham, David W.; Winn, Joshua N.; Jenkins, Jon M.; Butler, R. Paul; Charbonneau, David; Collins, Kevin I.; Crane, Jeffrey D.; Gan, Tianjun; Hellier, Coel; Howell, Steve B.; Irwin, Jonathan; Mann, Andrew W.; Ramadhan, Ali; Shectman, Stephen A.; Teske, Johanna K.; Yee, Samuel W.; Mireles, Ismael; Quintana, Elisa V.; Tenenbaum, Peter; Torres, Guillermo; Furlan, Elise (2023)
    Populating the exoplanet mass-radius diagram in order to identify the underlying relationship that governs planet composition is driving an interdisciplinary effort within the exoplanet community. The discovery of hot ...
  • A vast population of wandering and merging IMBHs at cosmic noon 
    Di Matteo, Tiziana; Ni, Yueying; Chen, Nianyi; Croft, Rupert; Bird, Simeon; Pacucci, Fabio; Ricarte, Angelo; Tremmel, Michael (2023)
    Massive black holes in the centres of galaxies today must have grown by several orders of magnitude from seed black holes formed at early times. Detecting a population of intermediate mass black holes (IMBHs) can provide ...
  • High-redshift supermassive black hole mergers in simulations with dynamical friction modelling 
    DeGraf, Colin; Chen, Nianyi; Ni, Yueying; Di Matteo, Tiziana; Bird, Simeon; Tremmel, Michael; Croft, Rupert (2024)
    In the near future, projects like Laser Interferometer Space Antenna (LISA) and pulsar timing arrays are expected to detect gravitational waves from mergers between supermassive black holes, and it is crucial to precisely ...
  • Spinning up a Daze: TESS Uncovers a Hot Jupiter Orbiting the Rapid Rotator TOI-778 
    Clark, Jake T.; Addison, Brett C.; Okumura, Jack; Vach, Sydney; Errico, Adriana; Heitzmann, Alexis; Rodriguez, Joseph E.; Wright, Duncan J.; Clerté, Mathieu; Brown, Carolyn J.; Fetherolf, Tara; Wittenmyer, Robert A.; Plavchan, Peter; Kane, Stephen R.; Horner, Jonathan; Kielkopf, John F.; Shporer, Avi; Tinney, C. G.; Hui-Gen, Liu; Ballard, Sarah; Bowler, Brendan P.; Mengel, Matthew W.; Zhou, George; Lee, Annette S.; David, Avelyn; Heim, Jessica; Lee, Michele E.; Sevilla, Verónica; Zafar, Naqsh E.; Hinkel, Natalie R.; Allen, Bridgette E.; Bayliss, Daniel; Berberyan, Arthur; Berlind, Perry; Bieryla, Allyson; Bouchy, François; Brahm, Rafael; Bryant, Edward M.; Christiansen, Jessie L.; Ciardi, David R.; Ciardi, Krys N.; Collins, Karen A.; Dallant, Jules; Davis, Allen B.; Díaz, Matías R.; Dressing, Courtney D.; Esquerdo, Gilbert A.; Harre, Jan-Vincent; Howell, Steve B.; Jenkins, Jon M.; Jensen, Eric L. N.; Jones, Matías I.; Jordán, Andrés; Latham, David W.; Lund, Michael B.; McCormac, James; Nielsen, Louise D.; Otegi, Jon; Quinn, Samuel N.; Radford, Don J.; Ricker, George R.; Schwarz, Richard P.; Seager, Sara; Smith, Alexis M. S.; Stockdale, Chris; Tan, Thiam-Guan; Udry, Stéphane; Vanderspek, Roland; Günther, Maximilian N.; Wang, Songhu; Wingham, Geof; Winn, Joshua N. (2023)
    NASA's Transiting Exoplanet Survey Satellite (TESS) mission has been uncovering a growing number of exoplanets orbiting nearby, bright stars. Most exoplanets that have been discovered by TESS orbit narrow-line, slow-rotating ...
  • A Uniform Analysis of Debris Disks with the Gemini Planet Imager. I. An Empirical Search for Perturbations from Planetary Companions in Polarized Light Images 
    Crotts, Katie A.; Matthews, Brenda C.; Duchêne, Gaspard; Esposito, Thomas M.; Dong, Ruobing; Hom, Justin; Oppenheimer, Rebecca; Rice, Malena; Wolff, Schuyler G.; Chen, Christine H.; Do Ó, Clarissa R.; Kalas, Paul; Lewis, Briley L.; Weinberger, Alycia J.; Wilner, David J.; Ammons, Mark; Arriaga, Pauline; De Rosa, Robert J.; Debes, John H.; Fitzgerald, Michael P.; Gonzales, Eileen C.; Hines, Dean C.; Hinkley, Sasha; Hughes, A. Meredith; Kolokolova, Ludmilla; Lee, Eve J.; López, Ronald A.; Macintosh, Bruce; Mazoyer, Johan; Metchev, Stanimir; Millar-Blanchaer, Maxwell A.; Nielsen, Eric L.; Patience, Jenny; Perrin, Marshall D.; Pueyo, Laurent; Rantakyrö, Fredrik T.; Ren, Bin B.; Schneider, Glenn; Soummer, Remi; Stark, Christopher C. (2024)
  • Do Type Ia Supernovae Explode inside Planetary Nebulae? 
    Court, Travis; Badenes, Carles; Lee, Shiu-Hang; Patnaude, Daniel; García-Segura, Guillermo; Bravo, Eduardo (2024)
    The nature of Type Ia supernova (SN Ia) explosions remains an open issue, with several contending progenitor scenarios actively being considered. One such scenario involves an SN Ia explosion inside a planetary nebula (PN) ...
  • An infrared transient from a star engulfing a planet 
    De, Kishalay; MacLeod, Morgan; Karambelkar, Viraj; Jencson, Jacob E.; Chakrabarty, Deepto; Conroy, Charlie; Dekany, Richard; Eilers, Anna-Christina; Graham, Matthew J.; Hillenbrand, Lynne A.; Kara, Erin; Kasliwal, Mansi M.; Kulkarni, S. R.; Lau, Ryan M.; Loeb, Abraham; Masci, Frank; Medford, Michael S.; Meisner, Aaron M.; Patel, Nimesh; Quiroga-Nuñez, Luis Henry; Riddle, Reed L.; Rusholme, Ben; Simcoe, Robert; Sjouwerman, Loránt O.; Teague, Richard; Vanderburg, Andrew (2023)
    Planets with short orbital periods (roughly under 10 days) are common around stars like the Sun<sup>1,2</sup>. Stars expand as they evolve and thus we expect their close planetary companions to be engulfed, possibly powering ...
  • Predicting the impact of feedback on matter clustering with machine learning in CAMELS 
    Delgado, Ana Maria; Anglés-Alcázar, Daniel; Thiele, Leander; Pandey, Shivam; Lehman, Kai; Somerville, Rachel S.; Ntampaka, Michelle; Genel, Shy; Villaescusa-Navarro, Francisco; Hernquist, Lars (2023)
    Extracting information from the total matter power spectrum with the precision needed for upcoming cosmological surveys requires unraveling the complex effects of galaxy formation processes on the distribution of matter. ...
  • Computationally efficient reionization in a large hydrodynamic galaxy formation simulation 
    Davies, James E.; Bird, Simeon; Mutch, Simon; Ni, Yueying; Feng, Yu; Croft, Rupert; Matteo, Tiziana Di; Wyithe, J. Stuart B. (2023)
    Accuracy in the topology and statistics of a simulated epoch of reionization (EoR) are vital to draw connections between observations and physical processes. While full radiative transfer models produce the most accurate ...
  • Masses, revised radii, and a third planet candidate in the 'Inverted' planetary system around TOI-1266 
    Cloutier, Ryan; Greklek-McKeon, Michael; Wurmser, Serena; Cherubim, Collin; Gillis, Erik; Vanderburg, Andrew; Hadden, Sam; Cadieux, Charles; Artigau, Étienne; Vissapragada, Shreyas; Mortier, Annelies; López-Morales, Mercedes; Latham, David W.; Knutson, Heather; Haywood, Raphaëlle D.; Pallé, Enric; Doyon, René; Cook, Neil; Andreuzzi, Gloria; Cecconi, Massimo; Cosentino, Rosario; Ghedina, Adriano; Harutyunyan, Avet; Pinamonti, Matteo; Stalport, Manu; Damasso, Mario; Rescigno, Federica; Wilson, Thomas G.; Buchhave, Lars A.; Charbonneau, David; Cameron, Andrew Collier; Dumusque, Xavier; Lovis, Christophe; Mayor, Michel; Molinari, Emilio; Pepe, Francesco; Piotto, Giampaolo; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Udry, Stéphane; Watson, Chris A. (2024)
    Is the population of close-in planets orbiting M dwarfs sculpted by thermally driven escape or is it a direct outcome of the planet formation process? A number of recent empirical results strongly suggest the latter. ...
  • Magnetic fields and rotation periods of M dwarfs from SPIRou spectra 
    Donati, J. -F; Lehmann, L. T.; Cristofari, P. I.; Fouqué, P.; Moutou, C.; Charpentier, P.; Ould-Elhkim, M.; Carmona, A.; Delfosse, X.; Artigau, E.; Alencar, S. H. P.; Cadieux, C.; Arnold, L.; Petit, P.; Morin, J.; Forveille, T.; Cloutier, Ryan; Doyon, R.; Hébrard, G.; SLS Collaboration (2023)
    We present near-infrared spectropolarimetric observations of a sample of 43 weakly to moderately active M dwarfs, carried with SPIRou at the Canada-France-Hawaii Telescope in the framework of the SPIRou Legacy Survey from ...
  • New Mass and Radius Constraints on the LHS 1140 Planets: LHS 1140 b Is either a Temperate Mini-Neptune or a Water World 
    Cadieux, Charles; Plotnykov, Mykhaylo; Doyon, René; Valencia, Diana; Jahandar, Farbod; Dang, Lisa; Turbet, Martin; Fauchez, Thomas J.; Cloutier, Ryan; Cherubim, Collin; Artigau, Étienne; Cook, Neil J.; Edwards, Billy; Hallatt, Tim; Charnay, Benjamin; Bouchy, François; Allart, Romain; Mignon, Lucile; Baron, Frédérique; Barros, Susana C. C.; Benneke, Björn; Canto Martins, B. L.; Cowan, Nicolas B.; De Medeiros, J. R.; Delfosse, Xavier; Delgado-Mena, Elisa; Dumusque, Xavier; Ehrenreich, David; Frensch, Yolanda G. C.; González Hernández, J. I.; Hara, Nathan C.; Lafrenière, David; Lo Curto, Gaspare; Malo, Lison; Melo, Claudio; Mounzer, Dany; Passeger, Vera Maria; Pepe, Francesco; Poulin-Girard, Anne-Sophie; Santos, Nuno C.; Sosnowska, Danuta; Suárez Mascareño, Alejandro; Thibault, Simon; Vaulato, Valentina; Wade, Gregg A.; Wildi, François (2024)
    The two-planet transiting system LHS 1140 has been extensively observed since its discovery in 2017, notably with Spitzer, HST, TESS, and ESPRESSO, placing strong constraints on the parameters of the M4.5 host star and its ...
  • Numerical quantification of the wind properties of cool main sequence stars 
    Chebly, Judy J.; Alvarado-Gómez, Julián D.; Poppenhäger, Katja; Garraffo, Cecilia (2023)
    As a cool star evolves, it loses mass and angular momentum due to magnetized stellar winds that affect its rotational evolution. This change has consequences that range from the alteration of its activity to influences ...
  • TESS Hunt for Young and Maturing Exoplanets (THYME). XI. An Earth-sized Planet Orbiting a Nearby, Solar-like Host in the 400 Myr Ursa Major Moving Group 
    Capistrant, Benjamin K.; Soares-Furtado, Melinda; Vanderburg, Andrew; Jankowski, Alyssa; Mann, Andrew W.; Ross, Gabrielle; Srdoc, Gregor; Hinkel, Natalie R.; Becker, Juliette; Magliano, Christian; Limbach, Mary Anne; Stephan, Alexander P.; Nine, Andrew C.; Tofflemire, Benjamin M.; Kraus, Adam L.; Giacalone, Steven; Winn, Joshua N.; Bieryla, Allyson; Bouma, Luke G.; Ciardi, David R.; Collins, Karen A.; Covone, Giovanni; de Beurs, Zoë L.; Huang, Chelsea X.; Jenkins, Jon M.; Kreidberg, Laura; Latham, David W.; Quinn, Samuel N.; Seager, Sara; Shporer, Avi; Twicken, Joseph D.; Wohler, Bill; Vanderspek, Roland K.; Yarza, Ricardo; Ziegler, Carl (2024)
    Young terrestrial worlds are critical test beds to constrain prevailing theories of planetary formation and evolution. We present the discovery of HD 63433 d—a nearby (22 pc), Earth-sized planet transiting a young Sun-like ...
  • Flyby Galaxy Encounters with Multiple Black Holes Produce Star-forming Linear Features 
    Chen, Nianyi; LaChance, Patrick; Ni, Yueying; Di Matteo, Tiziana; Croft, Rupert; Natarajan, Priyamvada; Bird, Simeon (2023)
    We look for simulated star-forming linear features such as the one recently discovered by van Dokkum et al. in the cosmological hydrodynamical simulation ASTRID. Among the runaway black holes in ASTRID, none are able to ...
  • The planetary system around HD 190622 (TOI-1054). Measuring the gas content of low-mass planets orbiting F-stars 
    Cabrera, J.; Gandolfi, D.; Serrano, L. M.; Csizmadia, Sz; Egger, J. A.; Baumeister, Ph; Krenn, A.; Benz, W.; Deline, A.; Florén, H. -G; Collier Cameron, A.; Adibekyan, V.; Alibert, Y.; Bellomo, S. E.; Delrez, L.; Fossati, L.; Fortier, A.; Grziwa, S.; Hoyer, S.; Bonfanti, A.; Salmon, S.; Sousa, S. G.; Wilson, T. G.; Alarcón, J.; Alonso, R.; Anglada Escudé, G.; Bárczy, T.; Barragán, O.; Barrado, D.; Barros, S. C. C.; Baumjohann, W.; Beck, M.; Beck, T.; Bernabò, L. M.; Billot, N.; Bonfils, X.; Borsato, L.; Brandeker, A.; Broeg, C.; Carrión-González, O.; Charnoz, S.; Ciardi, D. R.; Cochran, W. D.; Collins, K. A.; Collins, K. I.; Conti, D. M.; Davies, M. B.; Deeg, H. J.; Deleuil, M.; Demangeon, O. D. S.; Demory, B. -O; Ehrenreich, D.; Erikson, A.; Esposito, M.; Fridlund, M.; Gillon, M.; Goffo, E.; Güdel, M.; Guenther, E. W.; Harre, J. -V; Heng, K.; Hooton, M. J.; Isaak, K. G.; Jenkins, J. M.; Kiss, L. L.; Knudstrup, E.; Lam, K. W. F.; Laskar, J.; Lecavelier des Etangs, A.; Lendl, M.; Lovis, C.; Luque, R.; Magrin, D.; Maxted, P. F. L.; Muresan, A.; Nascimbeni, V.; Olofsson, G.; Osborn, H. P.; Osborne, H. L. M.; Ottensamer, R.; Pagano, I.; Pallé, E.; Persson, C. M.; Peter, G.; Piotto, G.; Pollacco, D.; Queloz, D.; Ragazzoni, R.; Rando, N.; Rauer, H.; Redfield, S.; Ribas, I.; Ricker, G. R.; Rodler, F.; Santos, N. C.; Scandariato, G.; Seager, S.; Ségransan, D.; Simon, A. E.; Smith, A. M. S.; Steller, M.; Szabó, Gy M.; Thomas, N.; Tosi, N.; Twicken, J. D.; Udry, S.; Van Eylen, V.; Van Grootel, V.; Walton, N. A.; Winn, J. N. (2023)
    Context. Giant planets are known to dominate the long-term stability of planetary systems due to their prevailing gravitational interactions, but they are also thought to play an important role in planet formation. ...
  • UV-driven chemistry as a signpost of late-stage planet formation 
    Calahan, Jenny K.; Bergin, Edwin A.; Bosman, Arthur D.; Rich, Evan A.; Andrews, Sean M.; Bergner, Jennifer B.; Cleeves, L. Ilsedore; Guzmán, Viviana V.; Huang, Jane; Ilee, John D.; Law, Charles J.; Le Gal, Romane; Öberg, Karin I.; Teague, Richard; Walsh, Catherine; Wilner, David J.; Zhang, Ke (2023)
    The chemical reservoir within protoplanetary disks has a direct impact on planetary compositions and the potential for life. A long-lived carbon- and nitrogen-rich chemistry at cold temperatures (= 50 K) is observed within ...
  • Cold Jupiters and improved masses in 38 Kepler and K2 small planet systems from 3661 HARPS-N radial velocities. No excess of cold Jupiters in small planet systems 
    Bonomo, A. S.; Dumusque, X.; Massa, A.; Mortier, A.; Bongiolatti, R.; Malavolta, L.; Sozzetti, A.; Buchhave, L. A.; Damasso, M.; Haywood, R. D.; Morbidelli, A.; Latham, D. W.; Molinari, E.; Pepe, F.; Poretti, E.; Udry, S.; Affer, L.; Boschin, W.; Charbonneau, D.; Cosentino, R.; Cretignier, M.; Ghedina, A.; Lega, E.; López-Morales, M.; Margini, M.; Martínez Fiorenzano, A. F.; Mayor, M.; Micela, G.; Pedani, M.; Pinamonti, M.; Rice, K.; Sasselov, D.; Tronsgaard, R.; Vanderburg, A. (2023)
    The exoplanet population characterized by relatively short orbital periods (P <sub>-2.9</sub><sup>+7.7</sup>% for cold Jupiters with 0.3-13 M<sub>Jup</sub> and 1-10 AU, which is lower but still compatible at 1.3s with the ...
  • Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070 
    Bollemeijer, Niek; Uttley, Phil; Basak, Arkadip; Ingram, Adam; van den Eijnden, Jakob; Alabarta, Kevin; Altamirano, Diego; Arzoumanian, Zaven; Buisson, Douglas J. K.; Fabian, Andrew C.; Ferrara, Elizabeth; Gendreau, Keith; Homan, Jeroen; Kara, Erin; Markwardt, Craig; Remillard, Ronald A.; Sanna, Andrea; Steiner, James F.; Tombesi, Francesco; Wang, Jingyi; Wang, Yanan; Zoghbi, Abderahmen (2024)
    In X-ray observations of hard state black hole X-ray binaries (BHXRBs), rapid variations in accretion disc and coronal power-law emission are correlated and show Fourier-frequency-dependent time lags. On short ($\sim$0.1 ...
  • TOI-4641b: an aligned warm Jupiter orbiting a bright (V=7.5) rapidly rotating F-star 
    Bieryla, Allyson; Zhou, George; García-Mejía, Juliana; Fairnington, Tyler R.; Latham, David W.; Carter, Brad; Dong, Jiayin; Huang, Chelsea X.; Murphy, Simon J.; Shporer, Avi; Collins, Karen A.; Quinn, Samuel N.; Everett, Mark E.; Buchhave, Lars A.; Tronsgaard, René; Charbonneau, David; Johnson, Marshall C.; Esquerdo, Gilbert A.; Calkins, Michael L.; Berlind, Perry; Jenkins, Jon M.; Ricker, George R.; Seager, Sara; Winn, Joshua N.; Barclay, Thomas; Mireles, Ismael; Paegert, Martin; Twicken, Joseph D. (2024)
    We report the discovery of TOI-4641b, a warm Jupiter transiting a rapidly rotating F-type star with a stellar effective temperature of 6560 K. The planet has a radius of 0.73 R<sub>Jup</sub>, a mass smaller than 3.87 ...

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